Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/15821#discussion_r121830292
--- Diff: python/pyspark/serializers.py ---
@@ -182,6 +182,23 @@ def loads(self, obj):
raise NotImplementedError
+class ArrowSerializer(FramedSerializer):
+ """
+ Serializes an Arrow stream.
+ """
+
+ def dumps(self, obj):
+ raise NotImplementedError
+
+ def loads(self, obj):
+ import pyarrow as pa
+ reader = pa.RecordBatchFileReader(pa.BufferReader(obj))
+ return reader.read_all()
--- End diff --
since we are sending multiple batches from JVM, does `reader.read_all()`
wait for all the bacthes?
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